diff --git a/test/testAnimation.cpp b/test/testAnimation.cpp
index 5eda26af..e5bf6823 100644
--- a/test/testAnimation.cpp
+++ b/test/testAnimation.cpp
@@ -36,7 +36,7 @@ TEST_CASE("Animation Basic", "[tvgAnimation]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     //Negative cases
     REQUIRE(animation->frame(0.0f) == Result::InsufficientCondition);
@@ -55,7 +55,7 @@ TEST_CASE("Animation Lottie", "[tvgAnimation]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     REQUIRE(picture->load(TEST_DIR"/invalid.json") == Result::InvalidArguments);
     REQUIRE(picture->load(TEST_DIR"/test.json") == Result::Success);
@@ -76,7 +76,7 @@ TEST_CASE("Animation Lottie2", "[tvgAnimation]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     REQUIRE(picture->load(TEST_DIR"/test2.json") == Result::Success);
 
@@ -93,7 +93,7 @@ TEST_CASE("Animation Lottie3", "[tvgAnimation]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     REQUIRE(picture->load(TEST_DIR"/test3.json") == Result::Success);
     
@@ -108,7 +108,7 @@ TEST_CASE("Animation Lottie4", "[tvgAnimation]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     REQUIRE(picture->load(TEST_DIR"/test4.json") == Result::Success);
 
@@ -123,7 +123,7 @@ TEST_CASE("Animation Lottie5", "[tvgAnimation]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     REQUIRE(picture->load(TEST_DIR"/test5.json") == Result::Success);
     
@@ -138,7 +138,7 @@ TEST_CASE("Animation Lottie6", "[tvgAnimation]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     REQUIRE(picture->load(TEST_DIR"/test6.json") == Result::Success);
 
@@ -153,7 +153,7 @@ TEST_CASE("Animation Lottie7", "[tvgAnimation]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     REQUIRE(picture->load(TEST_DIR"/test7.json") == Result::Success);
 
@@ -168,7 +168,7 @@ TEST_CASE("Animation Lottie8", "[tvgAnimation]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     REQUIRE(picture->load(TEST_DIR"/test8.json") == Result::Success);
 
@@ -183,7 +183,7 @@ TEST_CASE("Animation Lottie9", "[tvgAnimation]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     REQUIRE(picture->load(TEST_DIR"/test9.json") == Result::Success);
 
@@ -198,7 +198,7 @@ TEST_CASE("Animation Segment", "[tvgAnimation]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     float begin, end;
 
diff --git a/test/testLottie.cpp b/test/testLottie.cpp
index 81586826..918ea5b1 100644
--- a/test/testLottie.cpp
+++ b/test/testLottie.cpp
@@ -42,7 +42,7 @@ TEST_CASE("Lottie Slot", "[tvgLottie]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     const char* slotJson = R"({"gradient_fill":{"p":{"a":0,"k":[0,0.1,0.1,0.2,1,1,0.1,0.2,0.1,1]}}})";
 
@@ -78,7 +78,7 @@ TEST_CASE("Lottie Marker", "[tvgLottie]")
     REQUIRE(animation);
 
     auto picture = animation->picture();
-    REQUIRE(picture->identifier == Picture::identifier);
+    REQUIRE(picture->identifier() == Picture::identifier());
 
     //Set marker name before loaded
     REQUIRE(animation->segment("sectionC") == Result::InsufficientCondition);